Portable cleaning system



FIG. 1 is a left side elevational view of the portable cleaning systemshowing my new design;

FIG. 2 is a right hand side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a top plan view thereof.

The broken line disclosure in FIG. 1 is for illustrative purposes onlyand forms no part of the claimed design.

The ornamental design for a portable cleaning system, as shown anddescribed.